US President Obama Visits Buchenwald Concentration Camp Memorial

WEIMAR, GERMANY - JUNE 05: U.S. President Barack Obama (3rdL), German Chancellor Angela Merkel (2ndL), Buchenwald concentration camp survivor Elie Wiesel (R) and International Buchenwald Committee President Bertrand Herz (L) walk through the former Buchenwald concentration camp on June 5, 2009 near Weimar, Germany. Obama is visiting the site after his stop in Cairo, where in his speech to the Muslim world he made an appeal against Holocaust denial. Obama's great-uncle, Charles Payne, was among the first U.S. soldiers to arrive at the nearby subcamp of Ohrdruf in 1945. Thousands of Jews and other inmates worked as slave laborers and died under horrendous conditions at the Buchenwald camp during World War II. (Photo by Ralph Orlowski/Getty Images)